What affects an elements reactivity?

Number of electrons in outer shell

The more electron shells an atom has the ....

more shielded the nucleus, weaker the nucleus force on the outer electrons

As you move down a period

the number of electron shells increases

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Periodic Table Quiz Year 11

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Quiz based on periodic table section of AQA unit 3.1 (triple science - chemistry)

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Questions 14

Answers

1
What affects an elements reactivity?
Number of electrons in outer shell
Number of protons
Number of electrons
Number of neutrons
2
Group 1 elements are also known as
alkali earth metals
transition metals
halogens
alkali metals
3
Which is false about transition metals....
hard and strong
One oxidation state
high densities
Coloured compounds
4
The more electron shells an atom has the ....
less shielded the nucleus
stronger the nucleus force on the outer electrons
more shielded the nucleus
weaker the nucleus force on the outer electrons
5
How did Newlands order the elements?
Increasing number of protons
Increasing number of neutrons
Increasing number of electrons
increasing atomic mass
6
Complete the equation Chlorine + Potassium Bromide -->
Potassium chloride + Bromine
No reaction
Potassium hydroxide + Bromine
Potassium Chloride + Chlorine
7
As you move down group 1 the elements become...
more reactive
More malleable
Stronger
less reactive
8
Which chemist created the law of Octaves?
Dalton
Mendeleev
Dmetri
Newlands
9
Why did Mendeleev leave gaps in his periodic table?
Forgot to fill them
undiscovered elements
He was Russian
No element fitted
10
Sodium + water -->
sodium hydroxide + hydrogen
Sodium hydroxide + water
Sodium oxide + Water
Sodium oxide + hydrogen
11
As you move down a period
The more metallic an element
the number of electron shells increases
the number of electron shells decreases
The more non metallic an element
12
Which is incorrect statement about the halogens
Get more coloured as you move down group
Astatine is most reactive
Are in group 7
Form covalent compounds
13
As you move down group 1 the melting points....
stays the same
decreases
fluctuate
increases
14
Larger atoms gain electrons _________ than smaller atoms
similarly
equally
less easily
more easily

Periodic Table Quiz Year 11 Flashcards | StudBud